In a very recent biography of Nikola Tesla by Bernard Carlson, the author explains that Tesla measured the resonant frequency of the earth using his invention - the amplifying oscillator. Tesla came ...

When the comet Shoemaker-Levy 9 impacted with Jupiter it created a ball of fire 3000 Km high and it left a mark on the surface of the planet that was visible for weeks (source: Wikipedia). How was the ...

How can an aeroplane reach its targets if it is moving in the direction of rotation of the earth? Earth is revolving 1640 km per hour but aeroplane speed is 1200 km/h mathematically it is not possible ...

Since childhood, I have seen that whenever at night, the sky is cloudy, the sky becomes red. But, clouds are grayish, so it is expected that the sky becomes more darker. But no, it is not! Why does ...

I read an article a couple of hours ago named Hydrostatic Lapse which makes the case for a phenomenon that I thought was well and truly confirmed; that gravity is responsible for the cooling of gas ...

It's a well known problem that Earth is slowly losing its supply of helium due to helium's ability to "bubble off" the atmosphere. All the gas giants have significant percentages of helium in their ...

If I invert the pressure altitude equation so that I can get a nominal pressure for a given altitude, and compute the pressure altitude for Denver CO (elevation about $1600 \,m$ -- yes I know the wiki ...

(I was recommended to ask this question here by the guys on World Building)
I'm starting a whole new planet for a story and would like it to have an orange sky during the day.
At a basic level (I am ...

My friends and I were reminiscing about our intro physics classes and decided to revisit an old problem were we were required to calculate the orbital velocity of a cannonball fired from 1 meter above ...

Is there a radiation spectrum that could be used near the surface of the earth to fluoresce air enough to see the currents? Is there a complimentary CCD that can image that spectrum?
I am looking for ...

There is one thing that puzzles me: common explanation of why don't structures collapse under the enormous atmospheric pressure (~101300N/m^2) is that the force pushing from inside balances out the ...

Where does air pressure come from?
I thought it was from gravity or the speed of the gas resulting from its heat. However, analyzing my own hypotheses, I think that my 'heat conjecture' is probably ...

I don't understand why liquids and gases are acted upon by a buoyant force.
In a solid immersed on some fluid medium, the pressure pressure difference caused by gravity exerts a force on the surface ...

Sky looks blue because because our eyes are sensitive to blue colour. But when viewed through a camera why don't we see violet of the sky even though we can see violet colour of other pictures taken ...

I understand that places on the Earth's surface get hotter in summer, and in the middle of the day rather than morning or evening, because the surface of the Earth is presented 'face-on' to the Sun at ...

What is the most precise formula to calculate altitude and what parameters should i considet such as pressure, temperature, dew point, ...
I am developing an altimeter app and i don't know what the ...

It is common knowledge that there are dust devils and dust storms on Mars. But can we demonstrate that the atmospheric pressure on Mars, which is 0.6% of the pressure we experience on Earth, provides ...

If you replaced the Earth (except the atmosphere) with air and kept the pressure linear to the center (of the now non-existing Earth) while ignoring the effects this would have on gravity and leaving ...

Imagine a bucket of paint with a spinning ball in it. The paint would form a spiral and would not all move in synchronous movement with the ball.
To clairfy - In order for the Earth's atmosphere to ...

I had a question in my school exam.
Will the average surface temperature of the Earth be lower or higher, if there was no atmosphere?
Now, the answer expected is "The avg temp will be lower, because ...

The atmosphere is a fluid and we have volume, therefore we displace some of it and some buoyancy force must exist. How strong is it? How much does it affect gravitational acceleration on the surface ...

I am creating a hard science fiction flight simulator. I am a civil engineering student, so its a little out of my area of study.
Currently I model air resistance on the velocity difference between ...

If I have air pressure (in, say, Pa) and air temperature (in, say, K) - how do I calculate the saturation mixing ratio for water? I can't seem to find it anywhere and it's a fairly useful quantity to ...